scholarly journals STUDY ON THE EVALUATION OF GEOLOGICAL CONDITION AND THE PREDICTION AHEAD OF TUNNEL FACE BY SEISMIC SURVEY USING BLASTING FOR EXCAVATION

2016 ◽  
Vol 72 (2) ◽  
pp. 53-66 ◽  
Author(s):  
Masashi NAKAYA ◽  
Kazuhiro ONUMA ◽  
Hiroyuki YAMAMOTO ◽  
Atsuya NISHIKAWA ◽  
Hiroaki NIITSUMA
Keyword(s):  
Seismic Survey ◽  
Geological Condition ◽  
Tunnel Face

Evaluation of the geological condition ahead of the tunnel face by geostatistical techniques using TBM driving data

2003 ◽  
Vol 18 (2-3) ◽  
pp. 213-221 ◽  
Author(s):  
Takuji Yamamoto ◽  
Suguru Shirasagi ◽  
Shinya Yamamoto ◽  
Yoshitada Mito ◽  
Kenji Aoki
Keyword(s):  
Geological Condition ◽  
Tunnel Face ◽  
Geostatistical Techniques

scholarly journals STRATIGRAFI SEISMIK LAUT DANGKAL PERAIRAN CELUKANBWANG, BALI UTARA

2016 ◽  
Vol 1 (2) ◽  
Author(s):  
Nyoman Astawa ◽  
Wayan Lugra
Keyword(s):  
Volcanic Rocks ◽  
Seismic Survey ◽  
Normal Faults ◽  
Geological Condition ◽  
Geological Structures ◽  
Strong Energy ◽  
Energy Environment ◽  
Seismic Records ◽  
Break Area ◽  
Marine Seismic

Suvai seismik laut sepanjang pantai dan lepas pantai Celukanbawang Bali Utara dimaksudkan untuk mendapatkan data rekaman seismik guna menerangkan kondisi geologi daerah telitian. Berdasarkan pendekatan stratigrafi seismik, rekaman data seismik menunjukkan bahwa di daerah telitian terdapat 2 (dua) runtunan seismik, yaitu runtunan A dan B. Runtunan A diduga merupakan batuan volkanik sedangkan runtunan B diduga merupakan batuan sedimen yang diendapkan dalam lingkungan energi cukup kuat. Pada daerah slope break banyak dijumpai diapir, dan struktur geologi yang berkembang di daerah telitian adalah sesar normal. The marine seismic survey along the coast and offshore of Celukanbawang, North Bali, was directed to obtained seismic records to explain the geological condition of the study area. On the basis of seismic stratigraphy approach, the seismic records indicate that in the study area presence 2 (two) seismic sequences, those are sequence A and B. Sequence A is suggested as a volcanic rocks while sequence B is suggested as sedimentary rocks deposited within strong energy environment. At the slope break area the diapers were found, and the geological structures develope in the study area are normal faults.

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